Publications by authors named "Danfeng Qian"

While a few works have shown that Mettl3 plays oncogenic roles in hepatocellular carcinoma (HCC), its function in early HCC tumorigenesis remains unclear. In Mettl3; Alb-Cre knockout mice, Mettl3 loss leads to aberrant hepatocyte homeostasis and liver damage. Importantly, Mettl3 deletion dramatically accelerates liver tumorigenesis in various HCC mouse models.

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A genome-wide association study (GWAS) has discovered that a polymorphism in the gene is associated with systemic lupus erythematosus (SLE). In this study, we explored the candidate function of a variant (rs1170426) in the context of SLE and detected the relationship between SLE susceptible genes and SLE drug target genes. First, we investigated the regulatory role of rs1170426 on expression by expression quantitative trait loci (eQTL) analysis in peripheral blood mononuclear cells (PBMCs), T, B, and monocytes cells and annotated the regulatory function of rs1170426 using bioinformatic databases.

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To reach discharge limit, further treatment of bio-treated leachate from Chinese herbal medicine residue (BLCHMR) was very imperative. In this study, performance of combined coagulation/decantation-ozone/hydrogen peroxide (O/HO)-biological aerated filter (BAF) technology used to further treat BLCHMR was investigated with pilot-scale experiment. Under optimal conditions, the COD (40-44 mg/L) and color (13-17 time) in treated BLCHMR indicated that combined process can efficiently treat BLCHMR.

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Objective: The IKBKE has been proven to be associated with systemic lupus erythematosus (SLE) in a genome-wide association study (GWAS) conducted by our group. The objective of the recent study is to investigate the contribution of IKBKE functional variants (rs2297550) to SLE.

Methods: We detected the regulatory effect of rs2297550 on IKBKE expression by expression quantitative trait loci (eQTL) study.

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In this study, we aimed to explore the expression levels of JAK2 and PTPRC in peripheral blood mononuclear cells (PBMCs) from SLE patients and controls, detect the effects of SLE activity on genes mRNA expression, and find the association between genes mRNA expression and clinical manifestations of patients. We performed quantitative real-time PCR (qRT-PCR) to test differences in the expression levels of JAK2 and PTPRC in PBMCs extracted from 135 patients with SLE and 130 healthy controls. Furthermore, we detected the regulatory effect of SNPs on gene expression by expression quantitative trait loci (eQTL).

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To understand whether the anatomical location of origin plays a role in shaping the DNA methylation (DNAm) landscape of psoriatic skins. A number of 108 psoriatic and 57 control skin samples were grouped based on their anatomical locations. Two group t-tests were used to identify those differentially methylated sites and regions.

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Single-nucleotide polymorphisms (SNPs) in the UHRF gene have been shown to be associated with systemic lupus erythematosus (SLE) in European and Hong Kong Chinese, but statistically significant evidence for association has not been found in a mainland Han Chinese population. Therefore, we selected SNP rs13205210 located in UHRF1BP1 as a candidate association from our previously published genome-wide association study (GWAS) data of SLE (1,047 cases and 1,205 controls from a mainland Han Chinese population) to explore the association between the UHRF1BP1 gene and SLE. We conducted a large-scale replication study in an additional independent sample of 3,509 cases and 8,246 controls from a mainland Han Chinese population.

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Most psoriasis-related genes or loci identified by GWAS represent common clusters and are located in noncoding regions of the human genome, providing only limited evidence for the roles of rare coding variants in psoriasis. Two exome-wide case-control genotyping data sets (11,245 cases and 11,177 controls) were obtained from our previous study. Quality controls were established for each data set, and the markers remaining in each set were annotated using ANNOVAR.

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Importance: It is necessary to determine whether psoriasis responds to methotrexate in the same manner in patients with and without psoriatic arthritis.

Objective: To evaluate the effectiveness and safety of methotrexate in treating patients with psoriasis with and without psoriatic arthritis.

Design, Setting, And Participants: In this prospective, single-arm, interventional study, a total of 235 patients with psoriasis, 107 without psoriatic arthritis and 128 with psoriatic arthritis who were receiving methotrexate therapy from April 1, 2015, to December 31, 2017, were recruited from the outpatient department of a hospital at a large Chinese university.

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Objective: The objective of this study was to perform noninvasive analysis of skin proteins in a healthy Chinese population using label-free nanoflow liquid chromatography-mass spectrometry (nLC-MS).

Materials And Methods: Five consecutive tape strippings were obtained from the volar forearm skin of healthy Chinese subjects. Proteins were extracted, and trypsin-digested peptides were analyzed by a nanochromatography instrument coupled to an Orbitrap Fusion Tribrid mass spectrometer.

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